Machine for assembling lamin



(No Model.)

J. BIDDELL. MACHINE FOR ASSEMBLING LAMINE OF ARMATURES.

Patent d Jan 22, 1895.

WI T N ESSES av- ES Mvm/ JOHN RIDDELL, OF SCIIENECTADY, NEW YORK,ASSIGNOR TO THE THOMSON- HOUSTON ELECTRIC COMPANY, OF BOSTON,MASSACHUSETTS.

MACHINE FOR ASSEMBLING LAMIN/E OF ARMATURES.

SPECIFICATION forming part of Letters Patent No. 532,820, dated January22, 1895.

Application filed October 19,1 894. Serial No. 526,374. (No model.)

To all whom it may concern:

Be it known that I, JOHN RIDDELL, a citizen of the United States,residing at Schenectady, in the county of Schenectady, State of NewYork, have invented certain new and useful Improvements in Machines forAssembling Laminze of Armatures, of which the following is aspecification.

My invention relates to an apparatus de- [0 signed to assemble thelamina: of armatures of dynamo-electric machines, although it may beapplied to other purposes; and has for its object to produce such amachine capable of assembling laminze or punchings much more rapidlythan the ordinary presses used for such purposes, and also of compactingthem into a more rigid structure than. heretofore. To carry out thispurpose I provide a suitable base or suitable standards for the machine,

connected by rigid bars upon which the strain comes in the direction oftheir length so that their tensile strength is utilized, I then place arotating platen upon this machine, and upon this platen I put studs ofthe size of the armature shaft. The laminae are then loosely placed uponsleeves carried by these studs, and from the opposite end of the machinea hydraulic ram is advanced which presses them firmly in place. Upon oneend of the '0 sleeve I provide a screw-thread, and after the ram hasbeen advanced I screw a nut upon this thread, the ram having an openhead which permits insertion of the hand for this purpose. A stopco-operates with the rotat- 5 ing platen, centering the studs oppositethe ram, and upon one of the standards I provide a tooled surfaceagainst which the platen abuts, furnishing a substantial backing toresist the hydraulic pressure.

40 The accompanying drawings show an embodiment of my invention.

Figure 1 is a side elevation of my improved machine. Fig. 2 is a frontview of the platen, the studs being shown in section. Fig. 3

5 shows the form of the armature core when removed from the machine.

Referring by letter, A is the machine re ferred to.

B, B are standards, which may be of any desired pattern.

C, C are longitudinal bars joining the two standards, the lower one, C,forming a guide way for the reciprocating ram H, which has a carriage IIresting upon the bar, forming also the axle about which turns therevolving platen K. Any suitable means may be employed for securingthese bars in place.

Upon the platen K I arrange, as illustrated and described, threespindles one hundred and twenty degrees apart. These are carried uponthe studs Z, Z, &c., the arrangement being best shown in Fig. 2.

Referring to Fig. 1, the spindle L is shown surrounding the studs Z,which is shown in dotted lines. A collar S is turned upon the spindleand against this fixed collar another collar M bears. A horn L is alsoused, for a purpose presently to be pointed out, and is tapered, havingone end of less diameter and at the other end adiameter equal to that ofthe spindle. The platen bears, as already pointed out, against a surface0, upon the standard B, and is provided upon its edge with three holes,N, which co-operate with the spring catch N, seen at the top of theplaten in Fig. 1. At the other end of the machine is a hydrauliccylinder D, supplied through pipes E, E, which are respectively thecharging and exhaust pipes. A cock F controls the flow to this cylinder,and is ma- 8o nipulated bya rod G. Acounter-weight J is employed toreturn the ram II when the pressure is released. This ram is indicatedas carried upon the plunger I, in ways well known in the art,and isprovided with a hand-hole 7b.

Fig. 3 shows the disks assembled in place as removed from the machine. Anut R is placed over the threaded end Q of the spindle to secure it inplace.

The method of operation is this: The disks are assembled loosely inplace upon the spindle, the horn L forming a convenient means ofslipping them into place. YVhen the proper number have been put on, theplaten Kisrotated until the latch or stop N falls into the 5 one of theholes N opposite the spindle carrying the laminae. The cock F is thenoperated to throw on the pressure, and the ram II is slid forward untilit presses the laminae s, s firmly into place, a collar 1V having beenIOO previously slipped over the horn L. The horn L is then removed, andthe nut R is passed overthe threaded part Q, of the spindle. While thisis being done another one of the studs has the spindle L slipped over itand the laminae are then assembled thereon ready to be brought beforethe ram when the one in position before it is removed. The ram is then.run back by the counter-weight J as pressure is taken off it. The latchN is started, the platen rotated, and the disks which have just been putin place are substituted for those before the ram, while those whichhave been pressed are removed upon the other side of the machine.

It will be seen that as thus conducted the operation is continuous andthat there is no waste of time, while the disks are firmly and uniformlycompressed, the machine itself being constructed so as to take thestrain of its working parts and prevent its getting out of alignment orbecoming loose, so that it remains true even after considerable use.

What I claim as new, and desire to secure by Letters Patent of theUnited States, is-

1. In a machine for assembling laminze, a suitable frame, rodsconnecting the parts of such frame together, a platen rotating on one ofsuch rods, studs carried by the platen, and spindles carried by thestuds, substantially as described.

2. In a machine of the class described, a suitable frame for themachine, rods connecting the parts of the frame together, a platenrotating upon one of such rods, studs upon the platen, spindles arrangedto slide upon the studs, a stop upon a fixed part of the machine, andholes in the platen opposite each stud co-operating with the stop.

3. In a machine of the class described, a suitable frame, rodsconnecting the parts of the frame, a rotating platen upon one of suchrods, studs upon the platen, and spindles cooperating with the studs,each spindle provided with a retaining collar for thelaminze, as hereindescribed.

4. In a machine of the class described, a frame, rods connecting theparts of the frame, a platen rotating upon one of the rods, studs uponthe platen, and spindles adapted to slide over the studs, each spindleprovided with a collar upon one end and a threaded portion upon theother end.

5. In a machine of the class described, a suitable frame, rodsconnecting the parts of the frame, a platen revolving upon one of suchrods, studs upon the platen, spindles sliding over the studs, eachspindle provided with a collar upon one end and a screw-threaded portionupon the other, a taper horn covering the screw-threaded portion duringthe assembling of the laminze, and a nut adapted to engage with thescrew-threaded portion when the horn is removed, substantially asdescribed.

6. In a machine of the class described, a frame, rods connecting theparts of the frame, a platen revolving upon one of such rods andcarrying suitable parts for the assembling of the laminze, and a ramarranged to compress the laminae in position upon the platen, the platenabutting against a part of the frame of the machine at the portion ofits travel opposite the ram.

7. In a machine of the class described, a suitable frame, rods holdingthe parts of the frame together, a platen revolving upon one of suchrods and carrying means for assembling the laminzc, and a ram alsosliding upon one of the rods and arranged to compress the laminze intoposition, the ram having an opening through which a nut may be insertedto hold thelaminzn in position when compressed.

8. In a machine of the class described, a suitable frame, rods holdingthe parts of the frame together, a platen revolving upon one of suchrods, studs carried by the platen, spindles revolving upon the studs,each spindle having a screw-threaded portion at one end, a ram adaptedto compress the laminze when placed in position on the spindle, the ramhaving an opening in the head, and a nut registering with thescrew-threaded end of the spindle and holding the laminze in position.

In witness whereof I have hereunto set my hand this 12th day of October,1891-.

JOHN RIDDELL.

Witnesses:

A. F. MACDONALD, B. B. HULL.

